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      Singh, Vijay Raj (14)
      Anand, Asundi (11)Asundi, Anand Krishna (3)Chee, Oi Choo (2)Hegde, Gopalkrishna M. (2)Miao, Jianmin (2)Sim, Eddy (2)Sui, Liansheng (1)Wang, Zhihong (1)Date2009 (2)2008 (2)2007 (3)2006 (5)2005 (2)Subject
      Science (14)
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      Circle of holography : digital in-line holography for imaging, microscopy and measurement 

      Anand, Asundi; Singh, Vijay Raj (2006)
      Gabor proposed the concept of holography for wavefront reconstruction. The advent of the laser enabled Leith et al. to develop this concept into a technology with off-axis holography. Advances in computational methods and ...
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      Digital in-line holography for dynamic micro-metrology 

      Singh, Vijay Raj; Hegde, Gopalkrishna M.; Asundi, Anand Krishna (2006)
      In this paper in-line digital holography has been explored for dynamic micro metrological applications. In in-line digital holography, full CCD sensor area is utilized for real image reconstruction of the objects with less ...
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      Digital in-line holography for microscopic applications 

      Singh, Vijay Raj; Asundi, Anand Krishna (2005)
      Lensless digital holographic microscope (DHM) is presented for the study of transparent micro objects in three dimensions. A highly diverging beam replaces the conventional microscope objectives to provide the desired ...
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      Double exposure time averaged in-line digital holography 

      Singh, Vijay Raj; Anand, Asundi; Miao, Jianmin (2007)
      Theory, analysis and applications of digital in-line holography are presented for metrological applications. Particularly time averaged in-line digital holography is explored for dynamic characterization of membranes and ...
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      Development of simple user-friendly commercial digital holographic microscope 

      Chee, Oi Choo; Singh, Vijay Raj; Sim, Eddy; Anand, Asundi (2008)
      We report the development of a simple commercial digital holographic microscope. The hologram is recorded using a CCD sensor and numerically reconstructed to provide quantitative analysis of the object. The laser source ...
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      Characterisation of laser marks using digital holographic microscopy 

      Chee, Oi Choo; Sim, Eddy; Singh, Vijay Raj; Anand, Asundi (2008)
      The inspection and characterisation of laser marks using digital holographic microscopy (DHM) is presented in this paper. A DHM system in transmission mode was designed and the reconstruction algorithm for this configuration ...
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      Amplitude and phase analysis in digital dynamic holography 

      Anand, Asundi; Singh, Vijay Raj (2006)
      Lensless in-line digital holographic interferometry has the potential for vibration analysis of objects smaller than 5 mm in diameter. This is particularly useful for dynamic characterization of microelectromechanical ...
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      Vibration analysis of membrane by time average in-line digital holographic interferometry 

      Singh, Vijay Raj; Anand, Asundi (2006)
      In this paper, in-line digital holography is combined with time average method and applied for vibration analysis of an aluminum membrane. The numerically reconstructed wave from time average holograms contains information ...
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      Time-averaged in-line digital holographic interferometry for vibration analysis 

      Anand, Asundi; Singh, Vijay Raj (2006)
      Time-averaged in-line digital holography is applied for vibration analysis. In particular, by use of a double-exposure approach, simultaneous determination of vibration mode shape and mean static state deformation during ...
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      Dynamic characterization of MEMS diaphragm using time averaged in-line digital holography 

      Singh, Vijay Raj; Miao, Jianmin; Wang, Zhihong; Hegde, Gopalkrishna M.; Anand, Asundi (2007)
      In this paper dynamic characterization of a MEMS diaphragm is investigated using lens-less time averaged in-line digital holography. The analysis and capability of the numerically reconstructed amplitude and phase information ...
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